What is the use of auxiliaries in the normal temperature and pressure dyeing machine?

1. Auxiliary: You can add a leveling agent or dispersant in the dyeing bath of the normal temperature and pressure dyeing machine. The main purpose is to ensure the stable dispersion of the fuel. However, if the auxiliary is added excessively , It will have the opposite effect.

2. PH value: If it is under normal temperature and pressure and alkaline conditions, the disperse dyes will be hydrolyzed. Therefore, the dyeing pH value at normal temperature and pressure, I think it is better to ensure that it is acidic.

3. Temperature: Temperature is a key aspect for the operation of a dyeing machine at room temperature and pressure. Properly increasing the dyeing temperature can effectively increase the dyeing rate, so the efficiency of the work has also been improved, and The effect of dyeing, etc. However, the editor here wants to remind everyone that the temperature at different stages has different effects on the effect of dyeing. When the value exceeds a certain range, the dyeing effect will be undesirable, such as color change. Poor phenomenon, or directly reduce the effect of dyeing, etc.

Therefore, the high temperature of the normal temperature and pressure dyeing machine should be guaranteed at 145 degrees, fortunately, it can be guaranteed between 120 degrees and 130 degrees. The temperature in this range is good, and the dyeing effect is also of high quality. The whole dyeing is relatively uniform. However, when the temperature reaches the specified value, it should be maintained for a period of time, mainly to facilitate the effective diffusion and penetration of the dye into the fabric. The retention time is between 30 minutes and 60 minutes, and the dyeing is finished. After that, the temperature cannot be lowered quickly to avoid affecting the feel of the entire fabric.